(Abstract)
A set of 60 seismological stations (45 short period and 15 broadband) was installed at 21°S between the coast in Chile (70°W) and the Eastern Cordillera in Bolivia (64°W) along a 600 km long profile and operated during two years in the Central Andes region. The stations operating at a rate of 50 samples per second (sps) recorded large and local events as well as quarry blasts from the copper mines in the vicinity of the profile. The results will be used to improve the crust velocity model and to identify the Andean shear zones and their extension to the west. In addition, a shorter profile consisting of 20 stations (10 short period and 10 broadband) was installed in Argentina along a 200 km profile at 26°S with the aim to investigate lithospheric delamination across the Cerro Galan caldera, one of the most prominent intra-plate volcanoes in the world. The instruments recorded local and teleseismic events during two years and were used to map the Moho and LAB, as well as to investigate the Galan Caldera by teleseismic tomography.
Title
The ReFuCA project: Receiver Functions Central Andes
Sponsors:
Universidad Nacional de Salta, Facultad de Cs Nat. Geologia, Argentina; Servicio Geológico Minero de Bolivia; Universidad Católica del Norte Departamento de Geologia, Antofagasta, Chile; Geophysical Instrument Pool Potsdam (GIPP)
Cited by Wölbern, I.; Heit, B.; Yuan, X.; Asch, G.; Kind, R. (2006): Crustal and upper mantle structures beneath the Central Andes at 21°S and 25,5°S derived from receiver functions., (Geophysical Research Abstracts, Vol. 8, 03709, 2006), 3rd General Assembly European Geosciences Union (Vienna, Austria 2006), https://gfzpublic.gfz.de/pubman/faces/ViewItemOverviewPage.jsp?itemId=item_236865_3
Cited by Heit, B. (2005). Teleseismic tomographic images of the Central Andes at 21°S and 25.5°S: an inside look at the Altiplano and Puna plateaus. Ph.D. Thesis, (Scientific Technical Report STR; 06/05), Potsdam: Deutsches GeoForschungsZentrum GFZ, 137 pp, https://doi.org/10.2312/GFZ.b103-06052
Cited by Buske, S.; Asch, G.; Giese, P.; Haberland, C.; Heit, B.; Kind, R.; Koulakov, I.; Krawczyk, C. M.; Lüth, S.; Mechie, J.; Reichert, C.; Rietbrock, A.; Schulze, A.; Schurr, B.; Shapiro, S.; Sick, C.; Sobolev, S. V.; Stiller, M.; Wigger, P.; Yoom, M.; Yuan, X.; SFB 267 Research Group (2005). Seismic images of the Andean subduction zone: another brick in the wall, International Final Symposium of the Collaborative Research Center 'Deformation Processes in the Andes', SFB 267 (Potsdam 2005), https://gfzpublic.gfz.de/pubman/item/item_232516
(References) Heit, Ben; Yuan, Xiaohui; Asch, Günter; Kind, Rainer (2006).
Tomographic images of the Altiplano and Puna regions, GSA Backbone of the Americas-Patagonia to Alaska [Conference paper]. Mendoza, Argentina 2006.
(References) Heit, Ben; Koulakov, Ivan; Asch, Günter; Yuan, Xiaohui; Kind, Rainer (2005).
A teleseismic tomography image of the Southern Central Andes at 21°S [Conference paper]. (Geophysical Research Abstracts, Vol. 7, 04845, 2005), 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
(References) Heit, Ben; Kind, Rainer; Asch, Günter; Yuan, Xiaohui (2003).
The ReFuCA 2002 Project [Conference paper]. 63. Jahrestagung der Deutschen Geophysikalischen Gesellschaft (Jena 2003).
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